MasterPolyheed 8840

Mid-Range Water Reducer with Superior Pumping and Finishing

Available in New Zealand Only

How Does MasterPolyheed 8840 Work?

MasterPolyheed 8840 is a multi-component, non-chloride, mid-range water-reducing admixture designed to enhance the performance of concrete both in the plastic and hardened states. It meets and exceeds the requirements of AS1478 Type MWR.

Areas of Application

• All types of concrete where a non-chloride water-reducing admixture is required, especially in the mid-range slump band (100-150mm)

• Improving the performance of pumped concrete, shotcrete, and conventionally placed concrete

• Enhancing the performance of plain, reinforced, precast, lightweight, or standard-weight concrete

• Use in white or coloured concrete

• Use in architectural concrete, especially where off-form and/or surface finish is critical

• Use in concrete containing harsh aggregates and/or manufactured sands

What Makes MasterPolyheed 8840 a Unique Solution?

MasterPolyheed 8840 is a versatile admixture capable of producing mid-range slumps without retardation. Its formulation includes materials that improve the concrete’s workability and finishability.

What Are the Benefits of MasterPolyheed 8840?

In the Plastic State:

• Normal setting characteristics throughout the recommended dose range

• Reduced segregation, particularly in lean mixes and mid-slump concrete

• Improved workability

• Improved pumpability

• Reduced water content for a given workability

• Enhanced finishability, especially for concrete with manufactured or harsh aggregates

In the Hardened Concrete:

• No added chlorides, conforms to the most stringent chloride ion limits including AS3600 concrete structures code, and will not initiate or promote the corrosion of reinforcing steel

• Increased strength – compressive, flexural, and bond (concrete to steel)

• Superior finished appearance

• Increased density and durability

• Reduced permeability – improved water tightness

• Reduced cracking